C2SBM-Q User's Manual Front Panel Audio Control When front panel headphones are plugged in, the back panel audio output is disabled. This is done through the FP Audio header (J12). If the front panel interface card is not connected to the front panel audio header, jumpers should be installed on the header (J12) pin pairs: 1-2, 5-6, and 9-10. If these jumpers are not installed, the back panel line out connector will be disabled and microphone input Pin 1 will be left floating, which can lead to excessive back panel microphone noise and cross talk. See the table below for pin definitions. Power LED PWR LED Pin Definitions The Power LED connector is designated JLED.
This connection is used to pro- vide LED Indication of power supplied to the system. See the table on the right for pin definitions. Pin# Definition 2 Key 1 +5V 3 Ground J41 J28 KB/MOUSE 4-Pin PWR CPU Fan FAN1 W83627DHG S I/O 1 COM1 LGA 775 CPU W83627DHG S I/O 2 JPT1 VGA J31 COM2 24-pin ATX PWR JGS1 USB 2/3/4/5 JFSB2 JFSB1 DIMM1B DIMM2B J40 J43 USB 0,1 LAN 1 JPUSB1 Intel Q35 A. Front Panel Audio B.
PWR LED J11 Audio Fan3 JFSB3 J46 LAN CTRL PCI3 Slot7 PCI-E x16 C2SBM-Q PCI1 Slot6 PCI-33MHz JWOR JS4 JS3 JS1 JS2 I-SATA0 JL1 B A PCI2 JI2C2 JI2C1 Slot5 PCI-E x4 Battery JBT1 JPL1 Intel ICH9DO I-SATA2 I-SATA1 I-SATA3 LE1 JF1 FP CTRL Audio CTRL JPAC PCI1 JP2 Slot4 PCI-33MHz IDE CTRL ITE 8213 J45 JPUSB2 JWD JLED J12 CD1 Front Audio CD-IN J9 SPEAKER Buzzer SPKR COM4 USB 10 JWOL J15 J3 IDE#1 COM3 J14 J47 J44 FP USB 6/7 FP USB 8/9 FAN2 2-20 High Definition Fron Panel Audio Pin# Signal 1 MC L _ 2 AUD GND _ 3 MC R _ 4 FP Audio-Detect _ 5 Line 2 R _ _ 6 Ground 7 FP Jack-Detect _ 8 Key 9 Line 2 L _ _ 3 Ground DIMM1A DIMM2A